Results 21 to 30 of about 1,567 (162)

Designing and updating the flow part of axial and radial-axial turbines through mathematical modeling

open access: yesOpen Engineering, 2015
The paper describes an algorithm for the design of axial and radial-axial type turbines. The algorithm is based on using mathematical models of various levels of complexity – from 1D to 3D.
Rusanov Andrey   +2 more
doaj   +1 more source

Experimental Research on the Flow in the Steam Turbine Axial Exhaust Hood [PDF]

open access: yesEPJ Web of Conferences, 2022
There is the still remaining task to increase the efficiency of power plants and steam turbines. One possibility to increase the thermodynamic efficiency is to apply a suitable exhaust hood.
Tupy David, Slama Vaclav, Kalista Robert
doaj   +1 more source

Selection of Parameters for 3D Finite-volume Mesh for CFD Simulation of Axial Turbines

open access: yesMATEC Web of Conferences, 2018
This article describes the second part of the global work done by the authors aimed at finding the best settings for a numerical model for calculations of axial uncooled turbines using the RANS approach.
Popov Grigorii   +5 more
doaj   +1 more source

Rotors of Vertical-Axial Wind Turbines Assembled in Bearings and Aerodynamic Characteristics of a Blade with Unclosed Wing Profile

open access: yesManagement Systems in Production Engineering, 2022
In world practice, traditional blades used in high-speed wind turbines, both horizontal-axial and vertical-axial, have a wing-shaped profile. However, for horizontal-axial wind turbines, blades with such a profile have a fairly narrow range of operating ...
Panda Anton   +3 more
doaj   +1 more source

State-of-the-art of MW-level capacity oceanic current turbines

open access: yesNonlinear Engineering, 2020
Marine hydrokinetic turbines of MW-level capacity for harvesting oceanic currents are here reviewed. The best design is 3-blades, open rotor, axial flow turbines, of similar design philosophy to wind turbines, which are anchored to the ocean floor.
Boretti Alberto
doaj   +1 more source

Hydrodynamic Performance and Flow Field Characteristics of Tidal Current Energy Turbine with and without Winglets

open access: yesJournal of Marine Science and Engineering, 2023
In order to gain a more comprehensive understanding of the influence of winglets on the hydrodynamic performance and flow field characteristics of tidal current energy turbines, two different shapes of winglets are designed, and numerical simulation ...
Yi Wang   +3 more
doaj   +1 more source

Unsteady Flow Structures within a Turbine Rim Seal Cavity in the Presence of Purge Flow—An Experimental and Computational Unsteady Aerodynamics Investigation

open access: yesAerospace, 2019
Flow within the space between the rotor and stator of a turbine disk, and an area referred to as the rim seal cavity, develops azimuthal velocity component from the rotor disk.
Cengiz Camci   +2 more
doaj   +1 more source

Blades Interaction and Non-Stationarity of Flow in Vertical-Axial Wind Turbines

open access: yesManagement Systems in Production Engineering, 2021
Until recently, horizontal-axial wind turbines with blades having a wing profile occupied a predominant position in the world wind energy market. But currently, vertical-axial wind units are of increasing interest and this is understandable from the ...
Rozhkova Ludmila   +3 more
doaj   +1 more source

Selection of Parameters for Blade-to-blade Finite-volume Mesh for CFD Simulation of Axial Turbines

open access: yesMATEC Web of Conferences, 2018
This paper describes the first part of the global work done by the authors aimed at finding the best settings for a numerical model for the calculations of axial uncooled turbines using RANS approach.
Popov Grigorii   +4 more
doaj   +1 more source

Enhancing Wind Farm Performance through Axial Induction and Tilt Control: Insights from Wind Tunnel Experiments

open access: yesEnergies, 2023
Static axial induction control and tilt control are two strategies that have the potential to increase power production in wind farms, mitigating wake effects and increasing the available power for downstream turbines.
Guillem Armengol Barcos   +1 more
doaj   +1 more source

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